Big, Bigger, Biggest is back - and it's bigger than ever. 6 episodes revealing the key inventions that allowed structures to evolve from simple and small into complex and BIG.

Each episode opens showcasing the largest example of its kind and asks the question, ‘how did it grow so big?’ Then a whirlwind tour of CGI, demonstrations and actuality delivers the answer. Superstructures grow, evolve, bend, twist, move and collapse to reveal their secret workings - buckle up and prepare to be amazed!